drm/arm/komeda: Run DRM default client setup

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The komeda driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann <[e-mail]>
Cc: Liviu Dudau <[e-mail]>
Acked-by: Liviu Dudau <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/arm/display/Kconfig

···
 	tristate "ARM Komeda display driver"
 	depends on DRM && OF
 	depends on COMMON_CLK
+	select DRM_CLIENT_SELECTION
 	select DRM_KMS_HELPER
 	select DRM_GEM_DMA_HELPER
 	select VIDEOMODE_HELPERS

drivers/gpu/drm/arm/display/komeda/komeda_drv.c

···
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-#include <drm/drm_fbdev_dma.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_module.h>
 #include <drm/drm_of.h>
 #include "komeda_dev.h"
···
 	}
 
 	dev_set_drvdata(dev, mdrv);
-	drm_fbdev_dma_setup(&mdrv->kms->base, 32);
+	drm_client_setup(&mdrv->kms->base, NULL);
 
 	return 0;
 

drivers/gpu/drm/arm/display/komeda/komeda_kms.c

···
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
···
 static const struct drm_driver komeda_kms_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(komeda_gem_dma_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops = &komeda_cma_fops,
 	.name = "komeda",
 	.desc = "Arm Komeda Display Processor driver",